1Crontab(3)            User Contributed Perl Documentation           Crontab(3)
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NAME

6       Set::Crontab - Expand crontab(5)-style integer lists
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SYNOPSIS

9       $s = Set::Crontab->new("1-9/3,>15,>30,!23", [0..30]);
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11       if ($s->contains(3)) { ... }
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DESCRIPTION

14       Set::Crontab parses crontab-style lists of integers and defines some
15       utility functions to make it easier to deal with them.
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17   Syntax
18       Numbers, ranges, *, and step values all work exactly as described in
19       crontab(5). A few extensions to the standard syntax are described
20       below.
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22       < and >
23           <N selects the elements smaller than N from the entire range, and
24           adds them to the set. >N does likewise for elements larger than N.
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26       !   !N excludes N from the set. It applies to the other specified
27           range; otherwise it applies to the specified ranges (i.e. "!3" with
28           a range of "1-10" corresponds to "1-2,4-10", but ">3,!7" in the
29           same range means "4-6,8-10").
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31   Functions
32       new($spec, [@range])
33           Creates a new Set::Crontab object and returns a reference to it.
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35       contains($num)
36           Returns true if $num exists in the set.
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38       list()
39           Returns the expanded list corresponding to the set. Elements are in
40           ascending order.
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42       The functions described above croak if they are called with incorrect
43       arguments.
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SEE ALSO

46       crontab(5)
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AUTHOR

49       Abhijit Menon-Sen <ams@toroid.org>
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51       Copyright 2001 Abhijit Menon-Sen <ams@toroid.org>
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53       This module is free software; you can redistribute it and/or modify it
54       under the same terms as Perl itself.
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58perl v5.12.4                      2010-05-08                        Crontab(3)